Paddy-separator.



P. STREGKEL' PADDY SBPARATOR. APPLICATION nun JUNE 8, 1909.

Patented Aug. 31, 1909.

3 SHEETS-SHEET 1.

P. STREGKEL. PADDY SEPARATOR.

APPLICATION nun mm: s, 1909 3 SHEETS-SHEET 2.

Patented Aug. 31, 1909.

F. STREGKBL.

PADDY SEPARATOR. APPLICATION FILED JUNE 8, 1909.

Patented Aug. 31, 1909.

3 SHEETS-SHEET 3.

UNITED srAirns' PATENT onnro FRANZ STREGKEL, OFHAMBURG, GERMANY, Ass'i'enoit 'roEIsEnwEnK (vonm. NAGEL & KAEMP) AKTIENGESELLSGHAFT, or HAMBURG, GERMANY.

PADDY=SE?ARATOR.

Specification of Letters Patent Patented. Aug. 31, 1909.

Application filed .hifie s, 1909. Serial No. 500,931.

tion, such machines are provided with an improved adjustment device for inclining the separator table, and with a separate feed trough. I l

The working of the paddy separators to which this invention relates, is based to a certain extent on the princi le of throwing. The material to be so aratec that is to say, the mixtureof shellei and unshelled grains, is introduced into the separate chambers arranged on a table, the so-called separating table, from a feeding trough through feeding holes distributed over the whole length of the trough. The table is in an inclined position and is kept continuously vibrating transversely of the longitudinal direction of the chambers. In the chambers are arranged zig-zag-shaped throwing or projecting plates. The grains are continuously thrown against the said plates when the table is vibrating, and then recoil from the projecting plates with a force partly depending on their specific gravity and partly on their more or less great elasticity. In that way the shelled grains (the grains of greater-specific gravity) gradually reach the lowest side of the table, and the unshelled grains (or the specifically lighter bodies) travel u ward on the inclined plane. Thus the s elled and the nonshelled grains arrive separately from each other at the two longitudinal sides (the lowest and. the highest edge) of the table and can be collected at those places. The satis, factory working. of these 'machines, which have been known for years, depends on the inclination of the table being adjusted to suit exactly the nature of'the material to be treated (the roportion of mixture of shelled and unshelle grains, or, generally speaking, of specifically heavierand lighter, or more or less elastic bodies) and also on the care being taken that the feed trough extending throughout the whole length of the table should sup- .ply the material to the single chambers of the table, arranged transversely of the trough, in exactly the same proportion of mixture. In order to comply with the first condition, the table must be arranged in such manner as to enable it to be inclined at any desired angle. This adjustment must be, however, easy and convenient to effect, if it isdesired to make sure that the miller should really keep changing the inclination after starting the work and noticing the result of the mixture, until the best result is obtained .and that was im ossible to obtain with the devices hitherto .clination of the said tables.

own for adjusting the in- Nor is it possible to comply with the second of the above mentioned conditions in well known machines, as, for certain reasons more fully specified later, the arrangement of the feeding troughs is not such as to insure a uniform introduction of the material into the single chambers. I

This invention relates, therefore,- to a paddy-separator of well known kind, which: 1, is provided with an adjustment device for the table, whichcan be adjusted at any moment in simple manner, and 2,'is provided with a feed device, the use of which enables the second condition as to the distribution of the material among the single chambers, to be complied with.

A paddyv separator according to thls 1nvention with the improved adjustment device and an improved feeding trough, is illustrated by way of example in the accomp anying drawings, in which:-

Figure 1 shows the machlne seen from one side; Fig. 2 is a view seen from the left hand side of Fig. 1; Fig. 3 is a plan with the lid removed and the bottom partly cut out, and

Figs. 4 and 5 show, on an enlarged scale, a

longitudinal and cross section through the feeding trough.

lie the table of the paddy-se arator supported in an oscillating and well rnown manner on supports 2 caused to vibrate by means of the eccentric 3, or in any other desired manner, and provided with throwing or projecting lates 4 which throw to and fro the materia getting into the single chambers 5 and thus separate it so that it falls out from the outlet openings 6 separated in accordance with'its specific gravity. I The material gets into the chambers from a feeding trough 7 hand-wheel 16 which is into which it is introduced by means of a funnel or hopper 8 or in some other manner.

' At the front ends, the table is supported on therefore, to walk fromone plus 9, so as to be rotatable about its longi tudinal axis. I I j i turning the" table about its longitudinal arms, the inclination of the. surface of the table is adjusted, as already stated. Tothat end, the. paddy separator is providedat the longitudinal sides, under the table, with vertical screws by turning which, after loosening the set screws, the inclination of thetable can be altered as required, whereupon the set screws are again tightened. The adjustment of the table is, therefore, a fairly complicated one. It is necessary first of all to loosen the set screws, then to adjust theset screws distributed at both longitudinal' sides of the table, and finally to tighten again thesingleset screws. The miller has of these setscrews to the other around the whole of the table, whichtakes a great deal of time, as the table for lar e machines is three meters long, or even stil longer. The adjustment can, moreover, be effected only when the table is standing still.

' According to this invention, the device for adjustingthe inclination of the table is very considerably simplified and carried out in such, manner that the adjustment of the tablecan be effectedeven during its work ing. The turning of all the set screws is, namely efiected from a spindle which can be turned from the front side of the table. and is connected to the single screws in a suitable manner, for instance by means of a worm wheel gear. The securing after the adjustment is also effected no longer byfixing the separate screws, but byti'ghtening one single screw. 7

To the table are namely secured two or more (twoin the construction illustrated) set screw bolts 10. They are provided with nuts 11 mounted in the frame 12 of the table in such manner that they can bev turned, but not moved in the longitudinal direction. At the outer circumference these nuts are provided with a helical screw-thread 13 with with which engage worms 14 mounted on one and the same spindle. The latter is rotatably supported in thelongitudinal direction of the table, and provided at the free front end with a hand-wheel 16. When the hand-wheel in; question and, therefore, the spindle 15, is turned, the worms 14 bring about arotation of'theworm-wheels 13 or of the'nuts 11, and as the said moved in the longitudinal direction, they raise or lower, according to the direction of rotation, the screw bolts secured to the table and thus alter the inclination of the table 1.

For modifying the inclination in question, it 1s therefore merely necessary to turn the nuts cannot be arranged in a freely accessible manner at the free front end of the table, and this adjustment can be effected also during the working of the table.

For fixing the table after the adjustment has been effected, a rod 17 passing through it in the longitudinal direction is provided with ainut 19 provided with a hand-wheel 18. If the nut is tightened by means of the hand wheel, the two brackets 20, in which are mounted the pins 9 of the table, are tightened tOgetherand thus pressed against the front side of the table. For altering the inclination of the table, it is therefore merely necessary to loosen the nut 19, then to adjust the rotation by turning the hand-wheel 16, and thereupon to retighten the nut 19. A look nut 21 is preferably provided for securing the nut 19. In that way the miller, as soon as he notices that the separation does not take place quite as desired, can alter the movement of the table without interrupting the working, in order. to continue to see whether the result is better, or otherwise to adjust the table again. As already pointed out, however, a satisfactory working of the separator does not depend only on the inclination of the table, but also on the material being introduced into the single chambers 5 in a uniform manner, and that cannot be done in well known tables. The reasons for it is that a certain preliminary sorting of the grains or other bodies takes place already in the feeding trough extending throughout the whole length of the table, and participating in the rocking oscillations of the table, in such manner that at one end of the trough, for instance, preferably shelled, and at the other end preferably unshelled grains collect. In that case, however, in those chambers of the table which are nearest to the first mentioned end of the feed trough, there will collect a mixture in which the shelled grains predominate, and in the chamber at the other side, a mixture in which the nonshelled grains will predominate. The inclination of the table at one side would therefore have to be different from that on the other side, and as that is practically impossible, the miller can choose in well known devices only a mean position relatively to the inclination of the table, in which the best possible, but not absolutely the best, separation takes place. In order to avoid the above mentioned disadvantage the feedingtrough according to this invention is arranged in such manner that a preliminary sorting of the material before it is introduced into the chambers of the table, cannot take place.

there are arranged special guide surfaces between which the material gradually passes from the inlet opening to the distributing holes leading into the single chambers, and is inclosed onall sides in such manner that it This is effect-- ed in suchmanner that in the feeding trough cannot be thrown to and fro in the feeding trough. Under the outlet opening of the trough, leading to the feed holes, is further rating material is guided in such manner that it travels toward the feeding holes 24 ina comparatively slow manner and in a connected stream, without being able to make movements of its own when'the table with the trough are vibrating. The said feeding holes are distributed throughout the whole length of the table or of the trough in accordance with the arrangement of the chambers. Fig. 4 shows, dotted, some of these feed holes. For adjustin the feed holes 24, there is provided a joint side valve 25 which can be moved from the outside by means of a spindle 26. This is effected in such manner that the slide valve is provided at one or more points with tooth racks 27, with which engage the toothed rims 28 of the spindle 26. When the spindle is rotated, which can be effected by means of a crank 30 guided in a slot 29 and provided with a handle 31, the valve 25 is moved and closes or opens all the feed holes 24 in a similar manner. Owing to the arrangement ofthe winding conduit in the feed trough, not

only premature separation of the material is prevented, but the feed holes. at the bottom of the trough are relieved, so that the material separated falls through the holes only with a small pressurel That what I claim is 1. A paddy separating machine for separating bodies of different weight or elasticity,

comprising a support, an inclined table having a rocking movement on the support, baffle plates on the table, the table having a su porting portion on which it is movab e, means for adjusting the inclination of the table on said portion comprising pivotal members on which the table can swing on said portion, screw rods connected with the table, end members rotatably carried on the supporting member and engaging said screws by the rotation of which ends the screws are elevated and depressed to swing the table, a longitudinal shaft carrying worm portions, and worm wheels on the ends engaging said worm portions by which the ends are simultaneously rotated.

2. A paddy se arating machine for separating bodies of different weight or elasticity, comprising a support, an inclined table having a rocking movement on the support, baffie plates on the table, the table having a su porting portion on which it is movabl means for adjusting the inclination of the table on said portion comprising pivotal members on which the table can swing on said portion, screw rods connected with the table, end members rotatably carried on the sup porting member and engaging said screws by the rotation of which ends the screws are elevated and depressed to swing the table, a longitudinal shaft carrying Worm portions, worm wheels on the ends'engaging said worm portions by which the ends are simultaneously rotated, a rod by which the table is pivotally supported and having a threaded portion, and an end member on said rod arranged to clamp the table in adjusted position.

In Witness whereof I have hereunto set my hand this 25th day of May 1909 in the presence of the two subscribing witnesses.

FRANZ STREOKEL.

Witnesses:

ERNEST H. L. MUMMENHOFF, EDWARD HOPF. 

